mod_tiling/placement.c

   1 /*
   2  * ion/mod_tiling/placement.c
   3  *
   4  * Copyright (c) Tuomo Valkonen 1999-2009.
   5  *
   6  * See the included file LICENSE for details.
   7  */
   8
   9 #include <ioncore/common.h>
  10 #include <ioncore/global.h>
  11 #include <ioncore/clientwin.h>
  12 #include <ioncore/attach.h>
  13 #include <ioncore/manage.h>
  14 #include <libextl/extl.h>
  15 #include <ioncore/framep.h>
  16 #include <ioncore/names.h>
  17 #include "placement.h"
  18 #include "tiling.h"
  19
  20
  21 WHook *tiling_placement_alt=NULL;
  22
  23
  24 static WRegion *find_suitable_target(WTiling *ws)
  25 {
  26     WRegion *r=tiling_current(ws);
  27
  28     if(r==NULL){
  29         FOR_ALL_MANAGED_BY_TILING_UNSAFE(r, ws)
  30             break;
  31     }
  32
  33     return r;
  34 }
  35
  36
  37 static bool placement_mrsh_extl(ExtlFn fn, WTilingPlacementParams *param)
  38 {
  39     ExtlTab t, mp;
  40     bool ret=FALSE;
  41
  42     t=extl_create_table();
  43
  44     mp=manageparams_to_table(param->mp);
  45
  46     extl_table_sets_o(t, "tiling", (Obj*)param->ws);
  47     extl_table_sets_o(t, "reg", (Obj*)param->reg);
  48     extl_table_sets_t(t, "mp", mp);
  49
  50     extl_unref_table(mp);
  51
  52     extl_protect(NULL);
  53     ret=extl_call(fn, "t", "b", t, &ret);
  54     extl_unprotect(NULL);
  55
  56     if(ret){
  57         Obj *tmp=NULL;
  58
  59         extl_table_gets_o(t, "res_frame", &tmp);
  60
  61         param->res_frame=OBJ_CAST(tmp, WFrame);
  62         ret=(param->res_frame!=NULL);
  63     }
  64
  65     extl_unref_table(t);
  66
  67     return ret;
  68 }
  69
  70
  71 WPHolder *tiling_prepare_manage(WTiling *ws, const WClientWin *cwin,
  72                                 const WManageParams *mp, int priority)
  73 {
  74     int cpriority=MANAGE_PRIORITY_SUBX(priority, MANAGE_PRIORITY_NORMAL);
  75     WRegion *target=NULL;
  76     WTilingPlacementParams param;
  77     WPHolder *ph;
  78     bool ret;
  79
  80     param.ws=ws;
  81     param.reg=(WRegion*)cwin;
  82     param.mp=mp;
  83     param.res_frame=NULL;
  84
  85     ret=hook_call_alt_p(tiling_placement_alt, &param,
  86                         (WHookMarshallExtl*)placement_mrsh_extl);
  87
  88     if(ret && param.res_frame!=NULL &&
  89        REGION_MANAGER(param.res_frame)==(WRegion*)ws){
  90
  91         target=(WRegion*)param.res_frame;
  92
  93         ph=region_prepare_manage(target, cwin, mp, cpriority);
  94         if(ph!=NULL)
  95             return ph;
  96     }
  97
  98     target=find_suitable_target(ws);
  99
 100     if(target==NULL){
 101         warn(TR("Ooops... could not find a region to attach client window "
 102                 "to on workspace %s."), region_name((WRegion*)ws));
 103         return NULL;
 104     }
 105
 106     return region_prepare_manage(target, cwin, mp, cpriority);
 107 }
 108